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Across 3. The amount of work done in one second 5. Energy can never be created or destroyed but can change forms. 6. The energy an object has because of the position, shape, or condition of the object 9. A transfer of energy that occurs when a force makes an object move 10. The energy of a moving object due to the object's motion 11. Everytime energy is converted from one form to another, some of it is lost as heat 12. Systems that do interact with their environment so energy can be added or removed from it 13. The natural tendency for ever-increasing disorder.

Down 1. Any system of two or more objects seperated by a distance resulting from gravitational attraction 2. Two or more machines working together 4. Systems that do not interact with their environment 7. Energy stored in any type of stretched or compressed elastic material 8. A machine that only does work with only one movement of that machine